Manual Pages for UNIX Operating System command usage for man comb

User Commands                                        sccs-comb(1)



NAME
     sccs-comb, comb - combine SCCS deltas

SYNOPSIS
     comb [-os] [-csid-list] [-psid] s.filename...


DESCRIPTION
     comb generates a shell script (see sh(1)) that you  can  use
     to reconstruct the indicated s.files. This script is written
     to the standard output.


     If a directory name is used in place of the s.filename argu-
     ment, the comb command applies to all s.files in that direc-
     tory. Unreadable s.files produce an error;  processing  con-
     tinues  with  the  next file (if any). The use of `-' as the
     s.filename argument indicates that the names of files are to
     be read from the standard input, one s.file per line.


     If no options are specified, comb preserves  only  the  most
     recent  (leaf)  delta in a branch, and the minimal number of
     ancestors needed to preserve the history.

OPTIONS
     The following options are supported:

     -o            For each `get -e' generated, access the recon-
                   structed  file  at the release of the delta to
                   be created. Otherwise, the reconstructed  file
                   is  accessed  at the most recent ancestor. The
                   use of -o can decrease the size of the  recon-
                   structed  s.file.  It can also alter the shape
                   of the delta tree of the original file.


     -s            Generate scripts to gather statistics,  rather
                   than  combining  deltas.  When  run, the shell
                   scripts  report:  the  file  name,  size   (in
                   blocks)  after  combining, original size (also
                   in blocks), and the  percentage  size  change,
                   computed by the formula:

                   100 * ( original - combined ) / original

                   This option can be used to calculate the space
                   that  is saved, before actually doing the com-
                   bining.






SunOS 5.11          Last change: 30 Jun 2007                    1






User Commands                                        sccs-comb(1)



     -csid-list    Include the indicated  list  of  deltas.   All
                   other   deltas  are  omitted.  sid-list  is  a
                   comma-separated list of SCCS delta IDs (SIDs).
                   To  specify  a  range  of  deltas,  use  a `-'
                   separator instead of a comma, between two SIDs
                   in the list.


     -pSID         The SID of the oldest delta to be preserved.


FILES
     s.COMB       reconstructed  SCCS file


     comb?????    temporary file


ATTRIBUTES
     See attributes(5) for descriptions of the  following  attri-
     butes:



     ____________________________________________________________
    |       ATTRIBUTE TYPE        |       ATTRIBUTE VALUE       |
    |_____________________________|_____________________________|
    | Availability                | developer/build/make        |
    |_____________________________|_____________________________|


SEE ALSO
     sccs(1), sccs-admin(1),  sccs-cdc(1),  sccs-delta(1),  sccs-
     help(1),   sccs-prs(1),  sccs-prt(1),  sccs-rmdel(1),  sccs-
     sccsdiff(1), what(1), sccsfile(4), attributes(5)

DIAGNOSTICS
     Use the  SCCS  help  command  for  explanations  (see  sccs-
     help(1)).

BUGS
     comb might rearrange the shape of the  tree  of  deltas.  It
     might  not  save  any space; in fact, it is possible for the
     reconstructed file to actually be larger than the original.











SunOS 5.11          Last change: 30 Jun 2007                    2